/* ========================================
   Keyframe Animations
   ======================================== */

/* Cursor blink */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Hint line pulse */
@keyframes hintPulse {
  0%, 100% {
    opacity: 0.3;
    transform: scaleY(1);
  }
  50% {
    opacity: 1;
    transform: scaleY(1.2);
  }
}

/* Scanline pass over slide */
@keyframes scanlinePass {
  0% {
    top: -10%;
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    top: 110%;
    opacity: 0;
  }
}

/* Timeline node pulse glow */
@keyframes nodePulse {
  0%, 100% {
    box-shadow: 0 0 0 4px rgba(0, 240, 255, 0.15), 0 0 20px rgba(0, 240, 255, 0.3);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(0, 240, 255, 0.08), 0 0 30px rgba(0, 240, 255, 0.5);
  }
}

/* Section reveal - fade up */
.reveal-up {
  opacity: 0;
  transform: translateY(40px);
}

.reveal-up.revealed {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(24px);
}

.stagger-children.revealed > * {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-children.revealed > *:nth-child(1) { transition-delay: 0s; }
.stagger-children.revealed > *:nth-child(2) { transition-delay: 0.08s; }
.stagger-children.revealed > *:nth-child(3) { transition-delay: 0.16s; }
.stagger-children.revealed > *:nth-child(4) { transition-delay: 0.24s; }
.stagger-children.revealed > *:nth-child(5) { transition-delay: 0.32s; }
.stagger-children.revealed > *:nth-child(6) { transition-delay: 0.40s; }